<form action="send_order.py" method="post" class="form-inline">
  <div class="control-group">
    <label class="control-label" for="inputEmail">Email</label>
      <div class="controls">
        <input type="text" id="inputEmail" placeholder="Email">
      </div>
  </div>
  <div class="control-group">
    <label class="control-label" for="categories">Kategorien</label>
      <div class="controls">
        <select id="categories"> %(categories)s </select>
      </div>
  </div>
  <div class="control-group">
    <label class="control-label" for="products">Produkte</label>
      <div class="controls">
        <select id="products"> %(products)s </select>
      </div>
  </div>
  <div class="control-group">
    <div class="controls">
      <label class="checkbox">
    	<input type="checkbox"> Remember 
      </label>
      <button type="submit" class="btn">Bestellen</button>
    </div>
  </div>
</form>